How to construct the regular expression for the case?

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#1 by (3 votes)

2

I need to create an expression for the following case of a code field:

Maximum number of characters
The first digit should be just numbers [0-9]
The code is composed of alphanumeric digits and only the / (bar) and - (hyphen) characters, and they will not always have all of them.

I tried to start one, but without success:

^[0-9][a-zA-Z0-9\/-]+$

Example results

Valid:

260509
8605/05
5ABC605/05
756574-7
88BS-AS0

Invalid:

A8605/05
B756574-7

regex

asked by anonymous 23.10.2015 / 19:10

1 answer

score 3 · Accepted Answer

I believe that this regex serves to capture the desired pattern:

^\d([\w\-/]*)

It means, the first character must be a number, followed by a group that contains a list of characters a-zA-Z0-9 _- /